#ifndef LIBCSV_H__
#define LIBCSV_H__

#include <stdlib.h>
#include <stdio.h>

#ifdef __cplusplus
extern "C"
{
#endif

#define CSV_MAJOR 3
#define CSV_MINOR 0
#define CSV_RELEASE 3

    /* Error Codes */
#define CSV_SUCCESS 0
#define CSV_EPARSE 1   /* Parse error in strict mode */
#define CSV_ENOMEM 2   /* Out of memory while increasing buffer size */
#define CSV_ETOOBIG 3  /* Buffer larger than SIZE_MAX needed */
#define CSV_EINVALID 4 /* Invalid code,should never be received from csv_error */

/* parser options */
#define CSV_STRICT 1         /* enable strict mode */
#define CSV_REPALL_NL 2      /* report all unquoted carriage returns and linefeeds */
#define CSV_STRICT_FINI 4    /* causes csv_fini to return CSV_EPARSE if last field is quoted and doesn't containg ending quote */
#define CSV_APPEND_NULL 8    /* Ensure that all fields are null-terminated */
#define CSV_EMPTY_IS_NULL 16 /* Pass null pointer to cb1 function when empty, unquoted fields are encountered */

/* Character values */
#define CSV_TAB 0x09
#define CSV_SPACE 0x20
#define CSV_CR 0x0d
#define CSV_LF 0x0a
#define CSV_COMMA 0x2c
#define CSV_QUOTE 0x22

struct csv_parser
{
    int pstate;               /* Parser state */
    int quoted;               /* Is the current field a quoted field? */
    size_t spaces;            /* Number of continious spaces after quote or in a non-quoted field */
    unsigned char *entry_buf; /* Entry buffer */
    size_t entry_pos;         /* Current position in entry_buf (and current size of entry) */
    size_t entry_size;        /* Size of entry buffer */
    int status;               /* Operation status */
    unsigned char options;
    unsigned char quote_char;
    unsigned char delim_char;
    int (*is_space)(unsigned char);
    int (*is_term)(unsigned char);
    size_t blk_size;
    void *(*malloc_func)(size_t);
    void *(*realloc_func)(void *, size_t);
    void (*free_func)(void *);
};

/* Function Prototypes */
int csv_init(struct csv_parser *p, unsigned char options);                                                                            
int csv_fini(struct csv_parser *p, void (*cb1)(void *, size_t, void *), void (*cb2)(int, void *), void *data);                       
void csv_free(struct csv_parser *p);                                                                                                     
int csv_error(struct csv_parser *p);                                                                                                   
char *csv_strerror(int error);                                                                                                         
size_t csv_parse(struct csv_parser *p, const void *s, size_t len, void (*cb1)(void *, size_t, void *), void (*cb2)(int, void *), void *data); 
size_t csv_write(void *dest, size_t dest_size, const void *src, size_t src_size);
int csv_fwrite(FILE *fp, const void *src, size_t src_size);
size_t csv_write2(void *dest, size_t dest_size, const void *src, size_t src_size, unsigned char quote);
int csv_fwrite2(FILE *fp, const void *src, size_t src_size, unsigned char quote);
int csv_get_opts(struct csv_parser *p);              
int csv_set_opts(struct csv_parser *p, unsigned char options);
void csv_set_delim(struct csv_parser *p, unsigned char c);  
void csv_set_quote(struct csv_parser *p, unsigned char c);    
unsigned char csv_get_delim(struct csv_parser *p);        
unsigned char csv_get_quote(struct csv_parser *p); 
void csv_set_space_func(struct csv_parser *p, int (*f)(unsigned char));
void csv_set_term_func(struct csv_parser *p, int (*f)(unsigned char));
void csv_set_realloc_func(struct csv_parser *p, void *(*)(void *, size_t));
void csv_set_free_func(struct csv_parser *p, void (*)(void *)); 
void csv_set_blk_size(struct csv_parser *p, size_t); 
size_t csv_get_buffer_size(struct csv_parser *p); 

#ifdef __cplusplus
}
#endif

#endif
